diff --git a/Makefile.in b/Makefile.in
index 31836e2f..ed307e8e 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -394,6 +394,7 @@ WINE_SOURCE_ARGS = \
   --exclude dlls/winevulkan/winevulkan.spec
 
 WINE_CONFIGURE_ARGS = \
+  --enable-werror \
   --with-mingw \
   --disable-tests